I suspect Magnesium plays a bigger role in regulating supplements' absorption, interactions, and effects than most of us realize. It is often said that it is involved in over 300 enzymes, e.g:

"Over 300 enzymes require the presence of magnesium ions for their catalytic action." - wiki

Good luck finding a full list of those 300+ enzymes! I have never seen one full list, not even from the "experts" on Mg with books on it.

It's been said that magnesium & the amino acid taurine have some interchangeable & potentiating roles. Magnesium supposedly helps to regulate taurine & taurine can substitute for magnesium when magnesium is deficient. Magnesium taurate is one product available at different stores.

I was taking taurine for a while until I had temperatures issues during the winter. I'd read that it can lower your core temperature. I don't know how much, but I was already sometimes feeling too cold to sleep, and my core furnace runs at 94-96F, so I backed off.

I bought some more today, however, and intend to start taking it again as the temperatures warm up in the spring/summer.